On the way to dinner, Lorelai complains about the music Chris is playing in the car. The song is "18 and Life" by the band Skid Row whose lead singer Sebastian Bach plays Gil in Lane's band.
When Logan and Rory are walking the streets of New York, this is the same set found in the reboot of Gilmore Girls: A Year in the Life, when Rory is doing the GQ story about lines